1240113230221 has 2 divisors, whose sum is σ = 1240113230222. Its totient is φ = 1240113230220.

The previous prime is 1240113230189. The next prime is 1240113230227. The reversal of 1240113230221 is 1220323110421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147201655625 + 92911574596 = 1071075^2 + 304814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240113230221 - 2⁵ = 1240113230189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240113230192 and 1240113230201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240113230227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620056615110 + 620056615111.

It is an arithmetic number, because the mean of its divisors is an integer number (620056615111).

Almost surely, 2^{1240113230221} is an apocalyptic number.

It is an amenable number.

1240113230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240113230221 is an equidigital number, since it uses as much as digits as its factorization.

1240113230221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1240113230221 its reverse (1220323110421), we get a palindrome (2460436340642).

The spelling of 1240113230221 in words is "one trillion, two hundred forty billion, one hundred thirteen million, two hundred thirty thousand, two hundred twenty-one".